Ve"lar (?), a. [See Velum.]

1. Of or pertaining to a velum; esp. (Anat.) of or pertaining to the

soft palate.

2. (Phon.) Having the place of articulation on the soft palate;

guttural; as, the velar consonants, such as k and hard q.

||Ve*la"ri*um (?), n.; pl. Velaria (#). [L., a covering.] (Zoöl.) The

||marginal membrane of certain medusæ belonging to the Discophora.

||

Ve"late (?), a. [L. velatus, p. p. of velare to veil. See Veil.] (Bot.)

Having a veil; veiled.

Vele (?), n. A veil. [Obs.] Spenser.

||Ve*lel"la (?), n. [NL., dim. from L. velum a veil, a sail.] (Zoöl.)

||Any species of oceanic Siphonophora belonging to the genus Velella.

||

These creatures are brilliantly colored and float at the surface of the

sea. They have an oblong, disklike body, supported by a thin chitinous

plate, from which rises a thin diagonal crest which acts as a sail. The

feeding and reproductive zooids hang down from the under side of the

disk.

Ve*lif"er*ous (?), a. [L. velifer; velum a sail + ferre to bear.]

Carrying or bearing sails. [Obs.] "Veliferous chariots." Evelyn.

<! p. 1599 !>

||Vel"i*ger (?), n. [NL., fr. L. velum a veil + gerere bear.] (Zoöl.)

||Any larval gastropod or bivalve mollusk in the state when it is

||furnished with one or two ciliated membranes for swimming.

||

Vel`i*ta"tion (?), n. [L. velitatio, fr. velitari, velitatus, to

skirmish, from veles, - itis, a light-armed soldier.] A dispute or

contest; a slight contest; a skirmish. [R.] Sir M. Hale.

After a short velitation we parted.

Evelyn.

Ve*liv"o*lant (?), a. [L. velivolans; velum a sail + volare to fly.]

Flying with sails; passing under full sail. [R.]

Vell (?), n. [Cf. L. vellus the skin of a sheep with the wool on it, a

fleece, a hide or pelt, or E. fell a hide.] The salted stomach of a

calf, used in making cheese; a rennet bag. [Prov. Eng.]

Vell, v. i. [Cf. Vell, n.] To cut the turf from, as for burning. [Prov.

Eng.] Halliwell.

Vel*le"i*ty (?), n. [F. velléité (cf. It. velleità), fr. L. velle to

will, to be willing.] The lowest degree of desire; imperfect or

incomplete volition. Locke.

Vel"let (?), n. Velvet. [Obs.] Spenser.

Vel"li*cate (?), v. t. [imp. & p. p. Vellicated (?); p. pr. & vb. n.

Vellicating.] [L. vellicatus, p. p. of vellicare to twitch, fr. vellere

to pluck, pull.] To twitch; to cause to twitch convulsively.

Convulsions, arising from something vellicating a nerve in its

extremity, are not very dangerous.

Arbuthnot.

Vel"li*cate, v. i. To move spasmodically; to twitch; as, a nerve

vellicates.

Vel`li*ca"tion (?), [L. vellicatio.] 1. The act of twitching, or of

causing to twitch.

2. (Med.) A local twitching, or convulsive motion, of a muscular fiber,

especially of the face.

Vel"li*ca*tive (?), a. Having the power of vellicating, plucking, or

twitching; causing vellication.

||Vel*lon" (?), n. [Sp.] A word occurring in the phrase real vellon.

||See the Note under Its Real.

||

Vel"lum (?), n. [OE. velim, F. vélin, fr. L. vitulinus of a calf, fr.

vitulus a calf. See Veal.] A fine kind of parchment, usually made from

calfskin, and rendered clear and white, — used as for writing upon, and

for binding books.

Vellum cloth, a fine kind of cotton fabric, made very transparent, and

used as a tracing cloth.

Vel"lum*y (?), a. Resembling vellum.

Vel`o*cim"e*ter (?), n. [L. velox, -ocis, rapid + -meter.] An apparatus

for measuring speed, as of machinery or vessels, but especially of

projectiles.

Ve*loc"i*pede (?), n. [L. velox, - ocis, swift + pes, pedis, a foot.

See Velocity, and Foot.] A light road carriage propelled by the feet of

the rider. Originally it was propelled by striking the tips of the toes

on the roadway, but commonly now by the action of the feet on a pedal

or pedals connected with the axle of one or more of the wheels, and

causing their revolution. They are made in many forms, with two, three,

or four wheels. See Bicycle, and Tricycle.

Ve*loc"i*pe`dist (?), n. One who rides on a velocipede.

Ve*loc"i*ty (?), n.; pl. Velocities (#). [L. velocitas, from velox,

-ocis, swift, quick; perhaps akin to v&?;lare to fly (see Volatile):

cf. F. vélocité.]

1. Quickness of motion; swiftness; speed; celerity; rapidity; as, the

velocity of wind; the velocity of a planet or comet in its orbit or

course; the velocity of a cannon ball; the velocity of light.

In such phrases, velocity is more generally used than celerity. We

apply celerity to animals; as, a horse or an ostrich runs with

celerity; but bodies moving in the air or in ethereal space move with

greater or less velocity, not celerity. This usage is arbitrary, and

perhaps not universal.

2. (Mech.) Rate of motion; the relation of motion to time, measured by

the number of units of space passed over by a moving body or point in a

unit of time, usually the number of feet passed over in a second. See

the Note under Speed.

Angular velocity. See under Angular. - - Initial velocity, the velocity

of a moving body at starting; especially, the velocity of a projectile

as it leaves the mouth of a firearm from which it is discharged. —

Relative velocity, the velocity with which a body approaches or recedes

from another body, whether both are moving or only one. — Uniform

velocity, velocity in which the same number of units of space are

described in each successive unit of time. — Variable velocity,

velocity in which the space described varies from instant, either

increasing or decreasing; — in the former case called accelerated

velocity, in the latter, retarded velocity; the acceleration or

retardation itself being also either uniform or variable. — Virtual

velocity. See under Virtual.

In variable velocity, the velocity, strictly, at any given instant, is

the rate of motion at that instant, and is expressed by the units of

space, which, if the velocity at that instant were continued uniform

during a unit of time, would be described in the unit of time; thus,

the velocity of a falling body at a given instant is the number of feet

which, if the motion which the body has at that instant were continued

uniformly for one second, it would pass through in the second. The

scientific sense of velocity differs from the popular sense in being

applied to all rates of motion, however slow, while the latter implies

more or less rapidity or quickness of motion.

Syn. — Swiftness; celerity; rapidity; fleetness; speed.

Ve*lours" (?), n. [F. See Velure.] One of many textile fabrics having a

pile like that of velvet.

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